A preheating tool for a core box
By designing a core box preheating fixture, the core shooting machine was made efficient, solving the problem of core box heating affecting efficiency and improving the equipment's working efficiency and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI CONCH KAWASAKI EQUIP MFG
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-05
AI Technical Summary
When using the hot core box process, existing core shooting machines require waiting for the core box to heat up to a suitable temperature, which affects work efficiency, especially when changing the core box.
A preheating fixture for a core box was designed, including a fixture body, a positioning structure, and a clamping device. The clamping device and the positioning structure work together to achieve reliable clamping and preheating of the core box, preventing deformation of the core box during the heating process. Rolling friction is used to reduce frictional heat generation and wear.
It improves the working efficiency of the core shooting machine, avoids deformation of the core box during the preheating process, and extends the service life of the equipment.
Smart Images
Figure CN224322313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of core shooting machine production, specifically to a preheating fixture for a core box. Background Technology
[0002] A core shooter is a specialized piece of equipment used in casting production to manufacture sand mold cores. The function of a core shooter is to inject core sand into a core box under high pressure, rapidly shaping it into a core of a specific form, used to create internal cavities, holes, or complex structures in castings.
[0003] When using the hot core box process, the core box needs to be heated to 200-300℃ first to melt and solidify the resin in the coated sand, quickly forming a high-strength core. Therefore, current core shooters require waiting for the core box to heat up to a suitable temperature before they can operate, affecting the efficiency of the core shooter. This is especially true during production processes where core box replacement is required, as online heating of the core box significantly impacts the efficiency of the core shooter. Utility Model Content
[0004] The purpose of this invention is to provide a preheating fixture for a core box, which can preheat the core box and improve the working efficiency of the core shooting machine.
[0005] To achieve the above objectives, this utility model provides a preheating fixture for a core box, including a fixture body, a positioning structure, and a clamping device. The positioning structure is fixedly connected to the fixture body, and the core box is placed between the positioning structure and the clamping device. The core box is clamped and released by pushing the clamping device closer to or away from the positioning structure.
[0006] The tooling body is provided with a guide groove, and the clamping device cooperates with the guide groove to achieve relative sliding with the tooling body;
[0007] The clamping device includes two first columns arranged opposite each other, which respectively cooperate with the fixing seats on both sides of the core box.
[0008] Preferably, the clamping device further includes a sliding seat, which cooperates with the guide groove and can slide along the length direction of the guide groove, and two first columns are fixedly connected to the upper surface of the sliding seat.
[0009] Preferably, the two first columns are connected by a first crossbeam.
[0010] Preferably, the clamping device further includes a pushing structure, which is fixedly connected to the tooling body, and the pushing structure pushes the sliding seat to slide along the length direction of the guide groove.
[0011] Preferably, the pushing structure includes a support rod and a pushing screw, the support rod is fixedly connected to the tooling body, and a fixing nut that cooperates with the pushing screw is provided on the support rod.
[0012] Preferably, the tooling body is provided with a support surface for the core box, and the upper surface of the sliding seat is lower than the height of the support surface.
[0013] Preferably, the first crossbeam is located on the side of the first column away from the core box.
[0014] Preferably, the positioning structure includes two second columns, which are arranged opposite to the first columns in a one-to-one correspondence, and the second columns are fixedly connected to the tooling body.
[0015] Preferably, the two second columns are connected by a second crossbeam, which is located on the side of the second column away from the core box.
[0016] According to the above technical solution, the core box of this utility model is placed between the positioning structure and the clamping device. The core box is clamped and released by pushing the clamping device closer to or away from the positioning structure. When the clamping device is pushed closer to the positioning structure, the clamping device can push the core box and press it against the positioning structure. By locking the relative position between the clamping device and the positioning structure, the core box can be reliably clamped.
[0017] The core box has a cavity inside. The heating device is placed in the cavity inside the core box. By activating the heating device, the core box can be preheated. After the heating device is activated, due to the uneven thickness of different parts of the core box and the uneven heat distribution in the cavity, there is a risk of deformation of the core box during the preheating process. Therefore, by cooperating with the clamping device and the positioning structure, the basic shape of the core box can be guaranteed and deformation of the core box can be avoided during the preheating process.
[0018] By cooperating with the guide groove, the clamping device can slide relative to the tooling body along the guide groove. Preferably, a roller is provided between the guide groove and the clamping device, so that when the clamping device and the tooling body move relative to each other, the friction between the clamping device and the tooling body is rolling friction. This not only makes it easier to push the clamping device, but also reduces the frictional heat generated between the clamping device and the guide groove during the pushing process, and avoids wear and deformation of the guide groove after long-term use.
[0019] The clamping device includes two first columns arranged opposite each other, which respectively cooperate with the fixing seats on both sides of the core box.
[0020] The core box consists of two assembled boxes, each with mounting bases on both sides for mounting the core box. The mounting bases are located on the outer side of the core box cavity. A push plate, capable of relative movement with the box body, is located at the bottom of the core box to push out the product inside. Because the push plate can move relative to the box body, the box body itself needs to be fixed in place to control deformation, avoiding limiting the box body's position using the push plate.
[0021] In order to prevent the core box from deforming during preheating, the core box body needs to be fixed. The limiting effect of another box body that cooperates with it and the first column that cooperates with its fixing base ensures that the core box does not deform during the preheating process.
[0022] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0024] Figure 1 This is a schematic diagram of the structure of a preheating fixture for a core box;
[0025] Figure 2 This is a top view of a preheating fixture for a core box;
[0026] Figure 3 This is a bottom view of a preheating fixture for a core box.
[0027] Explanation of reference numerals in the attached figures
[0028] 1. Tooling body 11. Guide groove
[0029] 21 First column 22 First crossbeam
[0030] 23 Sliding seat 24 Support rod
[0031] 25 Push screw 26 Fixing nut
[0032] 12 Support Surface 31 Second Column
[0033] 32 Second crossbeam Detailed Implementation
[0034] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0035] In this utility model, unless otherwise stated, directional terms such as "length direction," "upper surface," and "away from" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.
[0036] See Figure 1The preheating fixture for the seed core box includes a fixture body 1, a positioning structure and a clamping device. The positioning structure is fixedly connected to the fixture body 1. The seed core box is placed between the positioning structure and the clamping device. The clamping and releasing of the seed core box is achieved by pushing the clamping device closer to or away from the positioning structure.
[0037] The tooling body 1 is provided with a guide groove 11, and the clamping device cooperates with the guide groove 11 to achieve relative sliding with the tooling body 1;
[0038] The clamping device includes two first columns 21 arranged opposite to each other, and the two first columns 21 respectively cooperate with the fixing seats on both sides of the core box.
[0039] By implementing the above technical solution, the core box is placed between the positioning structure and the clamping device. The core box is clamped and released by pushing the clamping device closer to or away from the positioning structure. When the clamping device is pushed closer to the positioning structure, the clamping device can push the core box and press it against the positioning structure. By locking the relative position between the clamping device and the positioning structure, the core box can be reliably clamped.
[0040] The core box has a cavity inside. The heating device is placed in the cavity inside the core box. By activating the heating device, the core box can be preheated. After the heating device is activated, due to the uneven thickness of different parts of the core box and the uneven heat distribution in the cavity, there is a risk of deformation of the core box during the preheating process. Therefore, by cooperating with the clamping device and the positioning structure, the basic shape of the core box can be guaranteed and deformation of the core box can be avoided during the preheating process.
[0041] By cooperating with the guide groove 11, the clamping device can slide relative to the tooling body 1 along the guide groove 11. Preferably, a roller is provided between the guide groove 11 and the clamping device, so that when the clamping device and the tooling body 1 move relative to each other, the friction between the clamping device and the tooling body 1 is rolling friction. This not only makes it easier to push the clamping device, but also reduces the frictional heat generated between the clamping device and the guide groove 11 during the pushing process, and avoids wear and deformation of the guide groove 11 after long-term use.
[0042] The clamping device includes two first columns 21 arranged opposite to each other, and the two first columns 21 respectively cooperate with the fixing seats on both sides of the core box.
[0043] The core box consists of two assembled boxes, each with mounting bases on both sides for mounting the core box. The mounting bases are located on the outer side of the core box cavity. A push plate, capable of relative movement with the box body, is located at the bottom of the core box to push out the product inside. Because the push plate can move relative to the box body, the box body itself needs to be fixed in place to control deformation, avoiding limiting the box body's position using the push plate.
[0044] In order to prevent the core box from deforming during preheating, the core box body needs to be fixed. The limiting effect of another box body that cooperates with it and the first column 21 that cooperates with its fixing seat ensures that the core box does not deform during the preheating process.
[0045] In this embodiment, preferably, the clamping device further includes a sliding seat 23, which cooperates with the guide groove 11 and can slide along the length direction of the guide groove 11. Two first columns 21 are fixedly connected to the upper surface of the sliding seat 23.
[0046] The sliding seat 2323 is slidably connected to the guide groove 1111. The two first columns 2121 are set perpendicular to the sliding seat 2323. This ensures that the first columns 2121 are perpendicular to the surface of the core box, so that when the first columns 2121 contact the fixing seat of the core box, they can keep in close contact with the mounting seat of the core box. This achieves better fixation and anti-deformation effect for the core box.
[0047] In this embodiment, preferably, the two first columns 21 are connected by a first crossbeam 22.
[0048] By setting the first crossbeam 22, the rigidity of the two first columns 21 is increased, and a force application position is also provided for the driving structure. When the driving structure pushes the first crossbeam 22, it can simultaneously push the two first columns 21, making the two first columns 21 move synchronously.
[0049] In this embodiment, preferably, the clamping device further includes a pushing structure, which is fixedly connected to the tooling body 11, and the pushing structure pushes the sliding seat 23 to slide along the length direction of the guide groove 11.
[0050] The pushing mechanism can be configured as a cylinder, lead screw, or other mechanism capable of linear motion. Under the action of the pushing structure, the clamping device continuously approaches the fixed structure, thereby clamping the core box located therein.
[0051] In this embodiment, preferably, the pushing structure includes a support rod 24 and a pushing screw 25. The support rod 24 is fixedly connected to the tooling body 1, and a fixing nut 2626 that cooperates with the pushing screw 25 is provided on the support rod 24.
[0052] The push screw 25 is screwed to the fixing nut 26. By rotating the push screw 25, the sliding seat 23 can be pushed closer to or away from the positioning structure, thereby realizing the pushing action on the sliding seat 23. Under the action of the push screw 25, the sliding seat 23 can slide along the guide groove 11. Preferably, a roller is provided between the guide groove 11 and the sliding seat 23 to make the pushing process smoother.
[0053] Preferably, a screw and nut structure with a self-locking function is selected. The self-locking function of the screw and nut structure can lock the position of the sliding seat 23. When the pushing structure is pushed into place, it will remain in that position, and the clamped core box can also maintain a stable position.
[0054] In this embodiment, preferably, the tooling body 1 is provided with a support surface 12 for the core box, and the upper surface of the sliding seat 23 is lower than the height of the support surface 12.
[0055] When the length of the core box is greater than the size of the sliding seat 23, the core box is supported by the support surface 12. During the process of pushing the core box, the bottom of the core box slides relative to the support surface 12 at the contact point with the support surface 12.
[0056] When the length of the core box is less than the size of the slide seat 23, the core box is supported by the upper surface of the slide seat 23. At this time, the slide seat 23 needs to be set to be wider so that the width of the slide seat 23 can accommodate two core box bodies and provide support for the two core box bodies.
[0057] In this embodiment, preferably, the first crossbeam 22 is disposed on the side of the first column 21 away from the core box.
[0058] The first crossbeam 22 is located on the side of the first column 21 away from the core box, which can avoid interference with the push plate at the bottom of the box. If the first crossbeam 22 contacts the push plate, the first column 21 will not be able to reliably push the mounting seat of the core box under the action of the push plate, and deformation may occur during the preheating process of the core box.
[0059] In this embodiment, preferably, the positioning structure includes two second columns 31, which are arranged opposite to the first column 21 in a one-to-one correspondence, and the second columns 31 are fixedly connected to the tooling body 1.
[0060] The second column 31 is positioned opposite to the first column 21 and corresponds to the mounting base of the two boxes respectively, thereby achieving reliable fixation of the core box.
[0061] One end of the guide groove 11 is connected to the second column 31, and the guide grooves 11 on both sides are connected to the two second columns 31 respectively, which can maintain the stability of the second columns 31.
[0062] In this embodiment, preferably, the two second columns 31 are connected by a second crossbeam 32, and the second crossbeam 32 is located on the side of the second column 31 away from the core box.
[0063] The connection between the two second uprights 31 via the second crossbeam 32 increases their strength. Positioning the second crossbeam 32 on the side of the second upright 31 away from the core box prevents interference between the second crossbeam 32 and the push plate at the bottom of the box.
[0064] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
[0066] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.
Claims
1. A preheating fixture for a core box, characterized in that, It includes a tooling body (1), a positioning structure and a clamping device. The positioning structure is fixedly connected to the tooling body (1). The core box is placed between the positioning structure and the clamping device. The core box is clamped and released by pushing the clamping device closer to or away from the positioning structure. The tooling body (1) is provided with a guide groove (11), and the clamping device cooperates with the guide groove (11) to achieve relative sliding with the tooling body (1); The clamping device includes two first columns (21) arranged opposite to each other, and the two first columns (21) respectively cooperate with the fixing seats on both sides of the core box.
2. The preheating fixture for the core box according to claim 1, characterized in that, The clamping device also includes a sliding seat (23), which cooperates with the guide groove (11) and can slide along the length direction of the guide groove (11). Two first columns (21) are fixedly connected to the upper surface of the sliding seat (23).
3. The preheating fixture for the core box according to claim 2, characterized in that, The two first columns (21) are connected by the first crossbeam (22).
4. The preheating fixture for the core box according to claim 3, characterized in that, The clamping device also includes a pushing structure, which is fixedly connected to the tooling body (1). The pushing structure pushes the sliding seat (23) to slide along the length direction of the guide groove (11).
5. The preheating fixture for the core box according to claim 4, characterized in that, The pushing structure includes a support rod (24) and a pushing screw (25). The support rod (24) is fixedly connected to the tooling body (1), and a fixing nut (26) that cooperates with the pushing screw (25) is provided on the support rod (24).
6. The preheating fixture for the core box according to claim 2, characterized in that, The tooling body (1) is provided with a support surface (12) for the core box, and the upper surface of the sliding seat (23) is lower than the height of the support surface (12).
7. The preheating fixture for the core box according to claim 3, characterized in that, The first crossbeam (22) is located on the side of the first column (21) away from the core box.
8. The preheating fixture for the core box according to claim 1, characterized in that, The positioning structure includes two second columns (31), which are arranged opposite to the first column (21) in a one-to-one correspondence, and the second columns (31) are fixedly connected to the tooling body (1).
9. The preheating fixture for the core box according to claim 8, characterized in that, Two second columns (31) are connected by a second crossbeam (32), which is located on the side of the second column (31) away from the core box.